There are times when you might want to send files from a Raspberry Pi to an Arduino, such as music or image files. If writing to an SD card beforehand and transferring it offline is sufficient, that's ...

This library is to use an HC4067 multiplexer by means of a PCF8574 (I2C 8 channel IO). The HC4067 allows e.g one analog port read up to 16 different analog channels, or one digital port to read the ...